Welterweight Rory MacDonald (12-1 MMA, 3-1 UFC) has been forced off the UFC’s second event in Toronto with an injury. The nature of the injury was not disclosed.

The UFC today announced that Claude Patrick (14-1 MMA, 3-0 UFC) will now face Brian Ebersole (48-14-1 MMA, 2-0 UFC) at UFC 140, which takes place Dec. 10 at Air Canada Centre in Toronto.

UFC 140 is headlined by a light-heavyweight title match between champ Jon Jones and former champ Lyoto Machida. The event’s main card airs live on pay-per-view.

Patrick, a Toronto native, was originally scheduled to meet Rich Attonito (10-4 MMA, 3-1 UFC) on the event’s preliminary card. A replacement opponent has yet to be secured for the American Top Team fighter, the UFC stated.

The colorful Ebersole waited years to get in the UFC, and he’s made the most of the opportunity. Earlier this year, he upset Chris Lytle via decision in a “Fight of the Night” performance, and he then scored a TKO victory over scantily clad Dennis Hallman at UFC 133. The 30-year-old now has won nine straights and 13 of his past 14, most of which came on the Australian fight circuit.

Patrick, meanwhile, looks to continue his impressive streak on home soil. The Canadian has scored UFC victories over Ricardo Funch, James Wilks and Roberts and now owns a 13-fight win streak going back to 2005. Nine of the Brazilian jiu-jitsu brown belt’s 14 career wins have come via submission.

The red-hot MacDonald had won two consecutive bouts against Nate Diaz and Mike Pyle before his injury forced him to bow out.